DITTING KE640 2.0 User guide

EN
Original instrucon manual
Single Espresso Grinder
KE640 2.0

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SINGLE ESPRESSO GRINDER
Overview

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KE640 2.0 | EN

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SINGLE ESPRESSO GRINDER

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KE640 2.0 | EN

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SINGLE ESPRESSO GRINDER
KE640 2.0
Contents
Overview ............................. 2
Scope of delivery ................. 7
General informaon ............ 8
Read operang instrucons
and keep safe ................................ 8
Explanaon of symbols used ........ 8
Safety................................. 10
Intended use ............................... 10
Safety informaon ...................... 10
Before using....................... 13
Funconing and basic sengs .....13
Checking grinder and scope of
delivery........................................ 13
Seng up the grinder and
inserng the bean container ...... 14
Setting up the portafilter
support .................................... 15
Operaon .......................... 16
Adding espresso beans............... 17
Switching on the grinder ............ 17
Seng the grinding degree ........ 18
Selecng the recipe/grinding
me ............................................. 18
Changing the recipe/grinding
me ............................................. 18
Grinding espresso beans ............ 19
Pausing grinding
(stop funcon) ............................ 20
Changing sengs .............. 21
Display/navigaon symbols ........ 21
Retrieving and leaving
main menu.................................. 22
Unlocking service menu ............. 22
Retrieving service menu ............. 22
Eding recipe number ................ 23
Eding recipe details................... 23
Seng the date and me ........... 24
Other sengs ............................. 24
Retrieving counts and logs.......... 27
Retrieving machine informaon.... 27
Cleaning............................. 28
Cleaning the grinder installaon
surface......................................... 29
Cleaning the casing..................... 29
Cleaning the bean container ...... 29
Cleaning the grinder ................... 30
Troubleshoong ................ 31
Technical data.................... 34
Disposal ............................. 35
Disposing of the packaging......... 35
Disposing of the grinder ............. 35
Maintenance and service...35
CE conformity declaraon...36
Notes ................................. 37

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KE640 2.0 | EN
Scope of delivery
No. Name
1Bean container (incl. lid)
2Locking screw for the bean container
3Bean container intake
4Locking screw for adjusng the grinding degree
5Adjusng the degree of grinding
6Screw for adjusng the portalter support (le and right)
7Portalter support
8Feet, 4×
9Brush
10 Drip tray
11 Start buon
12 Portalter intake
13 Outlet
14 Display
15 USB port on the back of the display (only for service technicians)
16 Sliding valve
17 Release buon (thermal overcurrent circuit-breaker)
18 Power cable (with power plug)
19 On/O switch
20 Rubber ring (seals bean container intake)
21 Marker for adjusng the grinding degree
22 Grinding degree scale

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SINGLE ESPRESSO GRINDER
General informaon
Read operang instrucons and keep safe
Before you start using the Single Espresso Grinder KE640 2.0,
carefully read through this original instrucon manual and the
safety informaon. Only then will you be able to use the Single
Espresso Grinder safely and without danger.
The original instrucon manual is based on the standards and regulaons in
force in the European Union. Please also note the guidelines and laws of your
specic country if abroad.
For beer clarity, the Single Espresso Grinder KE640 2.0 shall be referred to
hereinaer simply as the “grinder”.
Please keep this original instrucon manual safe for later queries.
Please also pass this original instrucon manual on to later owners and users
of the grinder.
Explanaon of symbols used
The following symbols and signal words are used in this original instrucon
manual, on the grinder or on the packaging.
WARNING!
This signal word / symbol indicates a risk with medium risk
level, which, if it is not avoided, can lead to death or serious
injury.
CAUTION!
This signal word / symbol indicates a risk with a low
risk level, which, if it is not avoided, can lead to mild or
moderate injury.
INFORMATION!
This signal word warns against possible material damage.

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KE640 2.0 | EN
This symbol provides you with important informaon concerning
operaon or handling.
Conformity declaraon (see chapter “Conformity declaraon”):
Products marked with this symbol fulll all applicable community
provisions of the European Economic Area.
ETL Listed seal of approval:
Products marked with this symbol meet the requirements for
electrical product safety of the United States of America.
Products marked with this symbol meet the required criteria of
the NSF (Naonal Sanitaon Foundaon) regarding cleanliness
and hygiene in the food industry.
Products marked with this symbol are only permied for use in
interior spaces.
This symbol indicates a danger of electric shock.
This symbol indicates that the grinder conforms to protecon
class I.

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SINGLE ESPRESSO GRINDER
Safety
Intended use
The grinder is only suitable for grinding whole roasted espresso beans. Do
not use the grinder to grind other products or objects. It is intended for
commercial use and may only be serviced by trained personnel. It may,
however, be operated by other persons in a place where use is supervised.
Any other use is not considered to comply with intended use and can result
in material damage or even personal injury. Do not make any changes to the
grinder. The manufacturer or the supplier shall not be held liable for any injury
or damage resulng from non-compliance with the safety instrucons.
Safety informaon
WARNING!
Danger of electrocuon!
Improper use, incorrect electrical installaon or a voltage that is too
high can all lead to electrocuon.
– Connect the grinder only if the mains voltage of the socket
complies with the informaon indicated on the nameplate.
– Only connect the grinder to a socket with good accessibility so
that you can disconnect it quickly from the power supply in the
event of any hazardous incident.
– Do not use the grinder if you noce any visible damage or if the
power cable or plug is faulty.
– If the power cable for the grinder is damaged, it must be re-
placed by the manufacturer or by qualied personnel in order
to avoid hazards.
– Connect the grinder only to a power supply with a 16 A-slow
back-up fuse or a 15 A load switch.
Have the 16 A-slow back-up fuse or 15 A load switch ed by a
qualied electrician if the power connecon at the site of instal-
laon of the grinder is not secured in this way.
– Install the grinder only in places where the handling of the
grinder can be supervised by trained personnel.

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KE640 2.0 | EN
– Do not immerse the grinder or the power cable / power plug in
water or any other liquids.
– Do not clean the grinder with a water jet.
– Do not clean the grinder with compressed air
(e.g. with a compressed air blow gun).
– Never touch the power plug with wet hands.
– Never unplug the mains plug from the wall socket by pulling on
the power cable; always grip the power plug.
– Never use the power cable as a handle to carry the grinder.
– Keep the grinder and power cable / power plug away from open
ames and hot surfaces.
– Do not posion the power cable in such a way that it could
create a tripping hazard.
– Do not bend the power cable and do not place it over sharp
edges.
– Use the grinder in indoor areas only. Never operate the grinder
in damp rooms or in the rain.
– Keep children away from the grinder.
– Make sure that children do not insert any objects into the
grinder.
– If you are not currently using or cleaning the grinder, or if a
disrupon occurs, switch the grinder o and remove the power
plug from the socket.
– Do not open the grinder casing; leave repairs to the experts. If
repairs are required, please contact a specialist workshop. In
the event of independent repairs being carried out, or of faulty
connecon or incorrect operaon, all liability and guarantee
claims are excluded. In the event of a repair, only parts that
comply with the original appliance specicaons may be used.
This grinder contains electrical and mechanical parts that are
essenal for protecon against potenal hazards.

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SINGLE ESPRESSO GRINDER
WARNING!
Danger for children and persons with reduced physical, sensory and
mental abilies (e.g. parally disabled persons, older persons with
limited physical and mental abilies) or a lack of experience and
knowledge (e.g. older children).
– This grinder may be used by children older than eight years and
by persons with reduced physical, sensory or mental disabilies
or a lack of experience and knowledge if they are supervised or
instructed on the safe use of the grinder and have understood
the possible resulng dangers. Children are not permied to
play with the grinder. Cleaning and user maintenance may not
be carried out by children without supervision.
– Do not leave the grinder unsupervised when in operaon.
– Do not let children play with the packaging lm. Children can
become entangled and choke while playing.
– Do not let children play with the small parts. They can be
life-threatening if swallowed.
CAUTION!
Risk of pping and injury!
Incorrect handling of the grinder can result in injury.
– Posion the power cable so that nobody can become entangled
in it, causing the grinder to fall down.
– Place the grinder on a level and stable surface to prevent it from
falling o.
The USB port (15) on the back of the display is intended
exclusively for use by service technicians, e.g. for updates.

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KE640 2.0 | EN
Before using
Funconing and basic sengs
The shot sizes, i.e. the volume of grounds per withdrawal, are dened by the
grinding me on the KE640 2.0 grinder.
The user can specify up to six dierent recipes (grinding mes / recipe mode)
for each of the grinders and also has the possibility of controlling the grinding
me manually (manual grinding).
The grinding process is started automacally when the portalter is inserted
and either stops automacally aer the dened grinding me has elapsed
(recipe mode) or when the portalter is removed (manual grinding).
Checking grinder and scope of delivery
INFORMATION!
Risk of damage!
The grinder can become damaged if the packaging is opened carelessly
with a sharp knife or other pointed object.
– Be very careful when opening.
1. Remove the grinder from its packaging.
2. Check if the delivery is complete (see Fig. A, B and C).
3. Check if the grinder or any of the individual parts are damaged.
If this is the case, do not use the grinder. Contact your supplier
(see chapter “Maintenance and service”).

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SINGLE ESPRESSO GRINDER
Seng up the grinder and inserng the bean container
INFORMATION!
Risk of damage!
Improper use can lead to damage to the bean container.
– Make sure during installaon to posion the bean container
in such a way that the locking screw for the bean container
reaches into the appropriate recess of the bean container when
screwing in. If you do not posion the bean container correct-
ly, you may damage the bean container when screwing in the
locking screw.
For grinders designed for mains voltage ranges of 200–230 V or
220–240 V, the locking screw for the bean container is a hexagon
socket screw. Use the 2 mm Allen key supplied with this model
to x the bean container.
For grinders designed for a mains voltage range of 100–127 V,
the locking screw for the bean container is a sloed screw. Use
a slot screwdriver to x the bean container (not included in
delivery).
1. Place the grinder on a level and stable surface that does not vibrate to
prevent it from falling o.
2. Make sure that the rubber ring (20) has been properly placed in the bean
container intake (3) and is lying at (see Fig. C ).
3. Place the bean container (1) onto the bean container intake.
In doing so, make sure that the pins in the bean container intake catch
the corresponding grooves on the bean container and the recess for the
locking screw on the bean container aligns in the direcon of the locking
screw on the bean container intake.
4. Keep pressing down lightly on the bean container and turn the bean con-
tainer clockwise so that it clicks into the bean container intake.
5. Use a slot screwdriver or the 2 mm Allen key supplied to screw the lock-
ing screw (2) for the bean container clockwise unl nger-ght. Make
sure not to screw the locking screw too ghtly. The locking screw should
be level on the bean container intake.

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KE640 2.0 | EN
6. Seal the bean container by swiveling in the sliding valve (16) (see Fig. D).
7. Place the drip tray (10) into the corresponding opening under the
outlet (13).
8. Make sure that the grinder is switched o (On/O switch (19) to “0”) and
connect the grinder to the power supply by inserng the power plug (18)
into a properly installed safety socket.
Seng up the portalter support
For grinders designed for mains voltage ranges of 200–230 V
or 220–240 V, the portalter support is aached with hexagon
socket screws. Use the 3 mm Allen key supplied with this model
for xing.
For grinders designed for a mains voltage range of 100–127 V,
the portalter support is aached with sloed screws. You will
need a slot screwdriver for xing (not included with delivery).
Adjust the portalter support (7) to the size of your espresso machine’s por-
talter (see Fig. E):
1. Make sure that the grinder is switched o and not connected to a power
supply (On/O switch (19) to posion “0”).
2. Turn anclockwise using a slot screwdriver or the 3 mm Allen key sup-
plied to loosen the screws (6) for adjusng the portalter support (le
and right). The portalter support is lowered as far as it will go.
3. Insert the portalter into the portalter support (12) .
4. Push the portalter support upwards unl the portalter ts exactly
between the portalter support and the portalter intake.
If the portalter support does not t, contact your supplier (see
chapter “Maintenance and service”).
5. Hold the portalter support in posion and x it by turning the screws
for adjusng the portalter support (le and right) unl ght using a slot
screwdriver or the 3 mm Allen key supplied.

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SINGLE ESPRESSO GRINDER
Operaon
INFORMATION!
Danger of overheang!
Exceeding the maximum permissible operang cycle can cause the
grinder to overheat.
– Do not exceed the maximum operang cycle
(see chapter “Technical data”).
– Observe the recommended pause when the maximum permis-
sible operang cycle is reached (see chapter “Technical data”).
INFORMATION!
Risk of damage!
The operator has no inuence on the thermal overcurrent circuit-
breaker. If the thermal overcurrent circuit-breaker has been triggered
several mes, a service partner must be contacted for advice as the
motor winding can become damaged.
• The grinder has a thermal overcurrent circuit-breaker which
interrupts the electric circuit of the grinder in case of electri-
cal overload. To put the grinder into operaon again, rst set
the on/o switch (19) to switch posion 0 (o) and discon-
nect the power plug (18). Then press the release buon (17).
You can now plug the power plug back into the socket and
put the grinder into operaon (see chapter “Switching on the
grinder").
• The grinder also has a motor protector, which switch-
es o the grinder when the motor becomes too hot.
As soon as the motor has cooled down, the grinder can be put into
operaon again (see chapter: “Troubleshoong”).

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KE640 2.0 | EN
Adding espresso beans
1. Remove the lid from the bean container (1).
2. Pour whole roasted espresso beans into the bean container from above.
• The maximum lling quanty should be approx. 1 cm below
the edge of the bean container.
• The minimum lling quanty should not fall below 2 cm in
order to ensure that there are no dosing uctuaons.
3. Place the lid back onto the bean container.
4. If necessary, open the bean container by swiveling out the sliding valve
(16) (see Fig. D).
Switching on the grinder
1. Make sure that you have inserted the power plug (18) into a properly
installed safety socket.
2. Switch on the grinder by switching the On/O switch (19) to “I”. The
grinder is ready for operaon as soon as the recipe last selected / the
symbol for manual grinding appear(s) on the display (14).

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SINGLE ESPRESSO GRINDER
Seng grinding degree
• The ghtened locking screw for adjusng the grinding degree
prevents any unwanted adjustment of the grinding degree.
• The grinding degree can be set connuously when the grind-
ing degree adjustor is unlocked.
• You can read the set grinding degree using the grinding de-
gree scale: The nest seng is “0” and the coarsest seng is
“10”.
1. Loosen the locking screw (4) for adjusng the grinding degree by turning
it anclockwise to lock the grinding degree adjustor (5) (see Fig. F).
2. Rotate the grinding degree adjustor clockwise or counterclockwise unl
the marker (21) for adjusng the grinding degree displays the desired
grinding degree (0-10) on the grinding degree scale (22).
Only reduce the grinding degree during grinding or when you
can be sure that there are no espresso beans in the grinder.
3. Fix the set grinding degree by ghtening the locking screw clockwise.
Selecng the recipe/grinding me
Two recipes are pre-set at delivery:
• Single espresso
• Double espresso (two single espressos)
–On the display (14), swipe up/down over the display range to select the
desired recipe or manual grinding.
The recipe details (recipe name, symbol and grinding me) or the
symbol for manual grinding are shown on the display.
Changing the recipe/grinding me
Proceed as follows if you would like to change the grinding me of an exisng
recipe:
1. On the display (14), swipe up/down on the display range to select the
desired recipe (see chapter “Selecng the recipe/grinding me”).
2. Touch the symbol of the selected recipe for longer than 1 second.
The display will show the set grinding me.

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KE640 2.0 | EN
3. Set the desired grinding me by swiping up/down over the appropriate
areas on the me display.
4. Click on the symbol to conrm the set grinding me or click on the
symbol to cancel the process without making any changes.
Grinding espresso beans
Grinding according to a recipe (recipe mode)
1. On the display (14), swipe up/down on the display range to select the
desired recipe (see chapter “Selecng the recipe/grinding me”).
2. Insert the portalter between the portalter intake (12) and the portal-
ter support (7) unl it touches the start buon (11).
The grinder starts the grinding process automacally when the start
buon is triggered and then stops aer the set grinding me. During the
grinding process, the remaining grinding me is counted down on the
display (14). As soon as the grinding me has elapsed, the grinding is
complete and the portalter can be removed.
3. Remove the portalter from the portalter intake once the grinding
process is complete.
Manual grinding
1. On the display (14), swipe up/down on the display range to select the
symbol for manual grinding (see chapter “Selecng the recipe/
grinding me”).
2. Insert the portalter between the portalter intake (12) and the portal-
ter support (7) unl it touches the start buon (11).
The grinder starts the grinding process automacally when the start but-
ton is triggered. During the grinding process, the symbol appears
on the display and the current grinding me is shown.
3. Remove the portalter from the portalter intake when you want to end
the grinding process.
As soon as the set abort me has elapsed, the symbol will appear
on the display.

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SINGLE ESPRESSO GRINDER
Pausing grinding (stop funcon)
The stop funcon automacally suspends grinding when you remove the
portalter from the portalter intake (12) and connues grinding when you
insert the portalter into the portalter intake again and trigger the start
buon (11).
1. Remove the portalter from the portalter intake during grinding to
pause grinding and stop the grinding me. The symbol for the remaining
grinding me ashes.
2. Reinsert the portalter between the portalter intake and the portalter
support (7) before the abort me elapses.
The suspended grinding process is connued automacally unl the
grinding me has elapsed.
The abort me is factory-set to 8 seconds and can only be
changed by a service technician.
Changing the type of espresso beans
1. Close the bean container (1) by swiveling in the sliding valve (16)
(see Fig. D).
2. Grind the remaining espresso beans unl the grinder runs idle
(see chapter “Grinding espresso beans”).
3. Remove the leover espresso beans from the bean container.
4. Pour the new espresso beans into the bean container.
5. Open the bean container by swiveling out the sliding valve.
6. Grind 2-3 shots to remove any residue of the old espresso beans, to
warm up the machine and to avoid any uctuaons in the dosage.